234555231577 has 2 divisors, whose sum is σ = 234555231578. Its totient is φ = 234555231576.

The previous prime is 234555231529. The next prime is 234555231593. The reversal of 234555231577 is 775132555432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200328751561 + 34226480016 = 447581^2 + 185004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234555231577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234555231577.

It is not a weakly prime, because it can be changed into another prime (234555231277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117277615788 + 117277615789.

It is an arithmetic number, because the mean of its divisors is an integer number (117277615789).

Almost surely, 2^234555231577 is an apocalyptic number.

It is an amenable number.

234555231577 is a deficient number, since it is larger than the sum of its proper divisors (1).

234555231577 is an equidigital number, since it uses as much as digits as its factorization.

234555231577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410000, while the sum is 49.

The spelling of 234555231577 in words is "two hundred thirty-four billion, five hundred fifty-five million, two hundred thirty-one thousand, five hundred seventy-seven".